UNITED STATES DEPARTMENT OF THE INTERIOR, Stewart L. Udall, Secretary 



FISH AND WILDLIFE SERVICE, Clarence F. Pautzke, Commissioner 

 Bureau of Commercial Fisheries, Donald L. McKernan, Director 



INTERCHANGE OF STREAM AND INTRAGRAVEL 

 WATER IN A SALMON SPAWNING RIFFLE 



by 



Walter G. Vaux 



Contribution No. 82, College of Fisheries, University of Washington 



United States Fish and Wildlife Service 

 Special Scientific Report- -Fisheries No. 405 



Washington, D. C, 

 March 1962 



